Wagon-jack



(No Model.)

G. FRAZER.

WAGON JAGK.

No. 361,997. l

Pate

nted-Apr. 26, 1887.

N. PETERS. PImw-Limagmphur. washington. l)4 C,

burg,

UNITED STATES PATENT OFFICE.

GEORGE FRAZER, OF WILLIAMSBURG, INDIANA.

WAGON-JACK.

SPECIFICATION forming part of Letters Patent No. 361,997, dated April26, 1887. Application filed January 8, 1887. Serial N o. 223,759. (Nomodel.)

To all whom it may concern:

Beit known that I, GEORGE FEAZER, a cit zen of the United States,residing at Williamsin the county of Wayne, State of Indiana, haveinvented certain new and useful Improvements in VVagcuJacks, of whichthe following is a specification, reference being had therein to theaccompanying drawings.

My invention relates to that class of machines used to raise the axlesof wagons and other objects byshand-power.

My invention consists in the devices herein described, constructed andoperating as set forth and claimed.

In the drawings, Figure l is a perspective view ofmy improved machine ina vertical position. Fig. 2 is a top plan view with a portion of theframe in cross-section. Fig. 8 is a side longitudinal section on acentral line running from top to bottom, shown in a horizontal position.

In Fig. l, A A represent a vertical frame composed of two upright piecesof timber parallel and firmly secured to each other.

B B are arms which have a common axis on a transverse horizontal rod orjournal, a, which is supported at each end in ears or brackets a a',secured to the front side ofthe framing A A. The front ends of the armsB B have a bolt, c, passing through them, which secures them to thehand-lever O and which serves as an aXis uponwhich said handlever C ispermitted to oscillate.

D is a notched wheel, which is allowed to revolve on the journal a,situated centrally between the vertical pieces forming the framing A A,and near the top of the same, and is provided on its periphery with aseries of triangular projections or teeth, l 2 3 4. 5 6, Fig. 3, one ofthe surfaces of which is at right angles to the circumference of thewheel. Formed upon and solid with the wheel D are pinions E E, Figs. l,2, and 3, smaller in diameter than the wheel D and revolving with it onthe journal a. These pinions E E engage in and actuatethe toothed bars bb,which are permitted to slide up and down in the frame A when impelledby the pinions E E. The bars b b are connected at the top by across-head, x, which is placed under the object to be raised.

The hand-lever C has its inner end con. structed to `iit into therecesses on the wheel D, and has its bearing upon said teeth 1 2 3 4 56, successively, as seen in Fig. 3, having an endwise motion allowed bythe swinging motion of the arms B B, between which it is permitted tooscillate. When the inner end of the hand-lever is placed in contactwith the surface of the tooth 4., as seen in Fig. 3, and a pressure isexerted on the opposite end of the lever, the wheel D is made torevolve, carrying with it the pinions E E, which in their` revolutionraise the toothed bars b b simultaneously along with the cross-head a:and the object under which it is placed.

An open slot, m, is provided in the back of the framing A A, in which isinserted a dog, e, hinged on a pivot, e', and actuated by a spring, s.This dog eis fitted at its upper end to drop into the recesses under thenotches or teeth 1 2 3 4, Src., as seen at 9, Fig. 3, by which the wheelD is held in place and the weight sustained at the point where thehandlever G is withdrawn to be placed in the succeeding notch. By thismeans a great lever age is attained and smoothly applied to the toothedbars b b in raising, and, by means of the dog e, in holding in positionsuch objects as are sought to be raised.

The bars b b are beveled .on their edges, as seen iu Fig. 2, to tit theinclined inner surfaces of the spaces in which they move and areretained in framing A A. The arms B B are connected near the front endsby a bar, d.

Having thus fully described my said invention,what I claim as new, anddesire to secure by Letters Patent, is

The combination of the lifting-bar provided with racks b Z, the frame A,the shaft a, the pinions and ratchet-wheel thereon, the lever carryingthe pawl for operating said ratchetwheel, and the retainingdog,allsubstantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

GEORGE FRAZER.

W'ituesscs:

W. T. DENNIS, W. A. PEELLE.

